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ACDelco Gold Brake Master Cylinder Assembly
Gold
Pack of 1

ACDelco Gold Brake Master Cylinder Assembly

GM Part #19304686

ACDelco Part #18M2418

MSRP$279.09*

ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today.

  • Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
  • Pressure tested to ensure safe and confident braking
  • Cast iron and aluminum specifications; no extra stress on the brake boosting mounting

Pack of 1

About this product

ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function.

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  • Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
  • Pressure tested to ensure safe and confident braking
  • Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
  • Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
  • Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear

Brake Booster IncludedNo
Mounting Bracket IncludedNo
Bleeder Hoses IncludedYes
Master Cylinder Cap IncludedYes
Pushrod IncludedNo
Reservoir IncludedYes
Port Quantity2
Mounting Hole Diameter0.433in
ClassificationGold
Master Cylinder Bore Diameter0 in / 0 mm
Mounting Hole Quantity2
Master Cylinder MaterialAluminum

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

The following should be conducted by a qualified technician:

  • Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • Check the thickness of your brake pads.
  • Inspection of the brake hoses for brittleness or cracking.
  • Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • Inspection of wheel bearings and grease seals.
  • Parking brake adjustments (as needed).

Brake cylinder signs of wear include:

  • Brake warning light is on.
  • Fluid spots beneath the car, indicating there may be a leak within the cylinder.
  • Difficulty stopping the vehicle.
  • A low or sinking brake pedal.

ModelBody StyleTrimYear(s)
Silverado 15002005, 2006
Silverado 1500 Classic2007

Frequently Asked Questions

No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.

Yes, ACDelco also offers GM OE brake cylinders.

Yes, ACDelco Professional Brake Cylinders come with a 12 month / unlimited mile warranty.